{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1049D-10VXIT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1049D-10VXIT","canonicalUrl":"https://icboms.com/infineon/CY7C1049D-10VXIT","factsUrl":"https://icboms.com/api/mcp/products/CY7C1049D-10VXIT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1049D-10VXIT, 4Mbit asynchronous SRAM, 512K x 8, 10 ns access time, 4.5V–5.5V supply, -40°C to 85°C, 36-SOJ, Tape & Reel.","salesMarkdown":"## 5V supply — not a 3.3V drop-in If your board is 3.3V, you need level translators on the address and data lines — or look at a 3.3V asynchronous SRAM like the CY7C1041DV33 series. ## Industrial temperature grade The 10 ns access time holds across that range, so timing closure at cold start or hot soak is the same as at 25°C. Infineon lists the CY7C1049D-10VXIT as obsolete.","metaTitle":"Infineon CY7C1049D-10VXIT 4Mbit Async SRAM, 10 ns, 5V","metaDescription":"Infineon CY7C1049D-10VXIT 4Mbit asynchronous SRAM with 10 ns access time, 4.5V–5.5V supply, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tape & Reel (TR)","Technology":"SRAM - Asynchronous","Access Time":"10 ns","Memory Size":"4Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"36-BSOJ (0.400\\\", 10.16mm Width)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C1049","Memory Organization":"512K x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"36-SOJ","Write Cycle Time - Word, Page":"10ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.3998","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ef26bb8332a8b72e0c9d44a0b0f27a70.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1049D-10VXIT/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for CY7C1049D-10VXIT?","answer":"Infineon has not published an official direct replacement for this part. For a 5V 4Mbit asynchronous SRAM in a 36-SOJ package, the closest pin-compatible alternative is the CY7C1049D-10VXI (the tube version of the same die) — but that too is obsolete. For new designs, consider a 3.3V asynchronous SRAM like the CY7C1041DV33 series with level translation, or a 5V synchronous SRAM if the bus can tolerate the clock."},{"question":"What is the access time of CY7C1049D-10VXIT?","answer":"The access time is 10 ns, which means the part can complete a random read or write cycle in 10 ns — fast enough for 100 MHz bus interfaces with careful PCB layout and matched trace lengths."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1049D-10VXIT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1049D-10VXIT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}